topotests: all_protocol_startup, add nexthop-group test with nhg group

An ECMP configuration is tested with nexthop group. Signed-off-by: Philippe Guibert <[email protected]>
pguibert6WIND · May 17, 2024 · 5004fba · 5004fba
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diff --git a/tests/topotests/all_protocol_startup/r1/ip_nht.ref b/tests/topotests/all_protocol_startup/r1/ip_nht.ref
@@ -68,6 +68,18 @@ VRF default:
  resolved via connected
  is directly connected, r1-eth0 (vrf default)
  Client list: static(fd XX)
+192.168.0.202
+ resolved via connected
+ is directly connected, r1-eth0 (vrf default)
+ Client list: pbr(fd XX)
+192.168.0.205
+ resolved via connected
+ is directly connected, r1-eth0 (vrf default)
+ Client list: pbr(fd XX)
+192.168.0.207
+ resolved via connected
+ is directly connected, r1-eth0 (vrf default)
+ Client list: pbr(fd XX)
 192.168.0.208
  resolved via connected
  is directly connected, r1-eth0 (vrf default)

diff --git a/tests/topotests/all_protocol_startup/test_all_protocol_startup.py b/tests/topotests/all_protocol_startup/test_all_protocol_startup.py
@@ -685,6 +685,58 @@ def test_nexthop_groups():
 
     tgen.gears["r1"].vtysh_cmd("sharp remove routes 10.10.10.10 1")
 
+    ## multiple nexthop-group dependencies
+    tgen.gears["r1"].vtysh_cmd(
+        """
+        configure terminal
+        nexthop-group GROUP1
+        group ECMP1
+        group ECMP2
+        """
+    )
+    tgen.gears["r1"].vtysh_cmd(
+        """
+        configure terminal
+        nexthop-group ECMP1
+        nexthop 192.168.0.202 r1-eth0
+        """
+    )
+    tgen.gears["r1"].vtysh_cmd(
+        """
+        configure terminal
+        nexthop-group ECMP2
+        nexthop 192.168.0.205 r1-eth0
+        """
+    )
+    tgen.gears["r1"].vtysh_cmd("sharp install routes 8.8.8.8 nexthop-group GROUP1 1")
+    verify_route_nexthop_group("8.8.8.8/32", ecmp=2)
+
+    tgen.gears["r1"].vtysh_cmd(
+        """
+        configure terminal
+        nexthop-group GROUP1
+        no group ECMP2
+        """
+    )
+    verify_route_nexthop_group("8.8.8.8/32", ecmp=1)
+    tgen.gears["r1"].vtysh_cmd(
+        """
+        configure terminal
+        nexthop-group ECMP3
+        nexthop 192.168.0.207 r1-eth0
+        """
+    )
+    tgen.gears["r1"].vtysh_cmd(
+        """
+        configure terminal
+        nexthop-group GROUP1
+        group ECMP3
+        group ECMP2
+        nexthop 192.168.0.207 r1-eth0
+        """
+    )
+    verify_route_nexthop_group("8.8.8.8/32", ecmp=3)
+
     ## Remove all NHG routes
 
     net["r1"].cmd('vtysh -c "sharp remove routes 2.2.2.1 1"')
@@ -696,6 +748,7 @@ def test_nexthop_groups():
     net["r1"].cmd('vtysh -c "sharp remove routes 5.5.5.1 1"')
     net["r1"].cmd('vtysh -c "sharp remove routes 6.6.6.1 4"')
     net["r1"].cmd('vtysh -c "c t" -c "no ip route 6.6.6.0/24 1.1.1.1"')
+    net["r1"].cmd('vtysh -c "sharp remove routes 8.8.8.8 1"')
 
 
 def test_rip_status():